Não informado. (1919). Bee World. International Bee Research Association.
Chicagoスタイル(17版)引用形式Não informado. Bee World. Bucks, Inglaterra: International Bee Research Association, 1919.
MLA(8版)引用形式Não informado. Bee World. International Bee Research Association, 1919.
警告: この引用は必ずしも正確ではありません.